Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Thomas Fedtke"'
Publikováno v:
Acta Acustica united with Acustica. 105:1173-1182
This study investigated whether the presence of audio sound (20 Hz < frequency f < 20 kHz) influences the detection threshold for infrasound (f < 20 Hz), and, vice versa, whether the presence of infrasound influences the detection threshold for audio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a6372f811758019a2237f7e18848c7b
https://doi.org/10.3813/aaa.919394
https://doi.org/10.3813/aaa.919394
Autor:
M.U. Bug, Thomas Fedtke
Publikováno v:
International Journal of Audiology. 59:398-402
Objective: To determine equivalent threshold sound pressure levels (ETSPL) for the RadioEar IP30 insert earphone for standardised short-term stimuli: IEC 60645-3 reference clicks and tonebursts in ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6eebeab40cf0094c6a223fecfb809bd4
https://doi.org/10.1080/14992027.2019.1682690
https://doi.org/10.1080/14992027.2019.1682690
Publikováno v:
The Journal of the Acoustical Society of America. 147(3)
The present study investigated the effect of the number of spectral components on the threshold in quiet of infrasound stimuli. Stimuli with one, two, or three sinusoidal components were presented monaurally to the ear with a low-distortion infrasoun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ecea3a13f2350719dc78d42f18297e8
https://pubmed.ncbi.nlm.nih.gov/32237799
https://pubmed.ncbi.nlm.nih.gov/32237799
Autor:
Thomas Fedtke, M.U. Bug
Publikováno v:
International journal of audiology. 59(8)
Objective: Equivalent threshold sound pressure levels (ETSPLs) were determined for RadioEar DD65v2 audiometric headphones.Design: The pure-tone hearing threshold levels were measured for 11 audiome...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9a4b88c2b54824a79a5ba975a245a78
https://pubmed.ncbi.nlm.nih.gov/32069129
https://pubmed.ncbi.nlm.nih.gov/32069129
Publikováno v:
Acta Acustica, Vol 5, p 4 (2021)
Several studies showed that the human auditory system is sensitive to infrasound. The present study investigated if non-linear processes within the ear generate distortion products, which may explain the auditory sensitivity to infrasound. Pure-tone
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2a770225751957f3069c00f5dd52005
https://doi.org/10.1051/aacus/2020029
https://doi.org/10.1051/aacus/2020029
Autor:
Dominique Rodrigues, Thomas Lavergne, Erling Sandermann Olsen, Thomas Fedtke, Richard Barham, Jean-Noël Durocher
Publikováno v:
Acta Acustica united with Acustica. 101:1007-1015
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24c34604ea468a033022011f52fe204f
https://doi.org/10.3813/aaa.918895
https://doi.org/10.3813/aaa.918895
Autor:
Dr.-Ing. Thomas Fedtke, Lee Grason
Publikováno v:
Seminars in Hearing. 35:295-311
This article describes the instrumentation used for the calibration of audiometric equipment and how the sound level measurements are traced back to national/international references. Couplers and ear simulators are crucial for the measurement of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a511e7573acaba8ceb92a79f0c79945
https://doi.org/10.1055/s-0034-1390160
https://doi.org/10.1055/s-0034-1390160
Autor:
Christian Koch, Hany Shawky, Salustiano Ruiz, Marin Chushkov, Håkan Andersson, Janine Avison, Christian Hof, Stephen P. Robinson, Slobodan Zelenika, Peter J. Harris, Peter Rosenkrantz, Dominique Rodrigues, Enver Sadikoglu, Nieves Medina Martin, Claudio Guglielmone, Thomas Fedtke
Publikováno v:
Metrologia. 56:09001
This is the final (Draft B) report for key comparison EURAMET.AUV.A-K5 on the pressure calibration of laboratory standard microphones in the frequency range from 2 Hz to 10 kHz. Twelve national metrology institutes took part in the key comparison and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db4d612a8716886cc1df6498cdca120f
https://doi.org/10.1088/0026-1394/56/1a/09001
https://doi.org/10.1088/0026-1394/56/1a/09001
Publikováno v:
Journal of Loss Prevention in the Process Industries. 26:1583-1589
This paper shows the results of our investigations on the ignition source ultrasound in dust-air atmospheres. Ultrasound is, on the one hand, considered to be an ignition source according to international safety standards (EN 1127–1 (2011)). On the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::041ea99adfe20aeecdbc55096d8bbb20
https://doi.org/10.1016/j.jlp.2013.08.009
https://doi.org/10.1016/j.jlp.2013.08.009
Autor:
Thomas Janssen, Volker Schirkonyer, Thomas Fedtke, Sven Vollbort, Makram Zebian, Johannes Hensel
Publikováno v:
The Journal of the Acoustical Society of America. 133:EL331-EL337
The purpose of this study was to quantify the change in distortion product otoacoustic emission (DPOAE) level upon ear canal pressurization. DPOAEs were measured on 12 normal-hearing human subjects for ear canal static pressures between -200 and +200
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::023b36de25d08dac8847b4dbb86f34a4
https://doi.org/10.1121/1.4795290
https://doi.org/10.1121/1.4795290